Frequencies for first 10,000 rows of racerfl variable in nhamcsopd2009 dataset : white/black | /other | imputed? | Freq. Percent Cum. ------------+----------------------------------- not imputed | 8,645 86.45 86.45 imputed | 1,355 13.55 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016